AK4648 Datasheet, PDF (15/119 Pages) Asahi Kasei Microsystems – Stereo CODEC with MIC/HP/SPK-AMP

[AK4648]
Parameter
min
typ
max
Speaker-Amp Characteristics: DAC → SPP/SPN pins, ALC=OFF, IVOL=0dB, DVOL=0dB, R_L=8Ω, BTL,
HVDD=3.6V; unless otherwise specified.
Output Voltage (Note 26)
SPKG2-0 bits = “000”, −0.5dBFS (Po=150mW)
-
3.11
-
SPKG2-0 bits = “001”, −0.5dBFS (Po=240mW)
3.13
3.92
4.71
HVDD=3.6V, SPKG2-0 bits = “011”, Mono/Stereo SPK Mode;
-1.5dBFS (Po=0.6W)
-
2.27
-
HVDD=3.6V, SPKG2-0 bits = “011”, High Power Mono SPK Mode,
0dBFS (Po=0.8W)
-
2.56
-
HVDD=4.5V, SPKG2-0 bits = “011”, 0dBFS (Po=1W)
-
Line Input Æ SPLP/SPLN or SPRP/SPRN pins, HVDD=4.5V, SPKG2-0
bits = “011”, −2.3dBV Input (Po=1W)
-
2.83
-
2.83
-
S/(N+D)
SPKG2-0 bits = “000”, −0.5dBFS (Po=150mW)
-
60
-
SPKG2-0 bits = “001”, −0.5dBFS (Po=240mW)
20
60
-
HVDD=3.6V, SPKG2-0 bits = “011”, Mono/Stereo SPK Mode,
-1.5dBFS (Po=0.6W)
-
20
-
HVDD=3.6V, SPKG2-0 bits = “011”, High Power Mono SPK Mode,
0dBFS (Po=0.8W)
-
20
-
HVDD=4.5V, SPKG2-0 bits = “011”, 0dBFS (Po=1W)
-
Line Input Æ SPLP/SPLN or SPRP/SPRN pins, HVDD=4.5V, SPKG2-0
bits = “011”, Mono/Stereo SPK Mode, −2.3dBV Input (Po=1W)
-
Line Input Æ SPLP/SPLN or SPRP/SPRN pins, HVDD=5V, SPKG2-0
bits = “011”, Mono SPK Mode, −1.3dBV Input (Po=1.3W)
-
Line Input Æ SPLP/SPLN or SPRP/SPRN pins, HVDD=5V, SPKG2-0
bits = “011”, High Power Mono SPK Mode, −0.3dBV Input (Po=1.6W)
-
20
-
20
-
20
-
20
-
S/N (A-weighted)
80
90
-
Interchannel Gain Mismatch (SPKMN bit = “1”)
-
0.5
-
Interchannel Isolation (SPKMN bit = “1”)
-
90
-
Load Resistance
8
-
-
Load Capacitance
-
-
30
Units
Vpp
Vpp
Vrms
Vrms
Vrms
Vrms
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Ω
pF
Note 26. Output voltage is proportional to AVDD voltage.
Vout = 0.94 x AVDD (typ.)@SPKG2-0 bits = “000”, 1.19 x AVDD(typ.)@SPKG2-0 bits = “001”, 2.05 x
AVDD(typ.)@SPKG2-0 bits = “010”, 2.58 x AVDD(typ.) @ SPKG2-0 bits = “011”, 0.6 x AVDD (typ.) @
SPKG2-0 bits = “100”, 0.3 x AVDD (typ.) @ SPKG2-0 bits = “101” at Full-differential output.
Note 27. In case of measuring at SPLP (SPRP) and SPLN (SPRN) pins
MS0625-E-01
- 15 -
2007/06